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| author | Michal Hocko <mhocko@suse.com> | 2017-07-10 15:51:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-10 16:32:35 -0700 |
| commit | 12e8fd6fd380261fd200d2e8f7a519ade73ea05b (patch) | |
| tree | 1a0c4dd2d97d121288e2120022e23a1d1f5de5e1 /lib/rhashtable.c | |
| parent | c46ecce431ebe6b1a9551d1f530eb432dae5c39b (diff) | |
| download | lwn-12e8fd6fd380261fd200d2e8f7a519ade73ea05b.tar.gz lwn-12e8fd6fd380261fd200d2e8f7a519ade73ea05b.zip | |
lib/rhashtable.c: use kvzalloc() in bucket_table_alloc() when possible
bucket_table_alloc() can be currently called with GFP_KERNEL or
GFP_ATOMIC. For the former we basically have an open coded kvzalloc()
while the later only uses kzalloc(). Let's simplify the code a bit by
the dropping the open coded path and replace it with kvzalloc().
Link: http://lkml.kernel.org/r/20170531155145.17111-3-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/rhashtable.c')
| -rw-r--r-- | lib/rhashtable.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/rhashtable.c b/lib/rhashtable.c index d9e7274a04cd..42466c167257 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -211,11 +211,10 @@ static struct bucket_table *bucket_table_alloc(struct rhashtable *ht, int i; size = sizeof(*tbl) + nbuckets * sizeof(tbl->buckets[0]); - if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER) || - gfp != GFP_KERNEL) + if (gfp != GFP_KERNEL) tbl = kzalloc(size, gfp | __GFP_NOWARN | __GFP_NORETRY); - if (tbl == NULL && gfp == GFP_KERNEL) - tbl = vzalloc(size); + else + tbl = kvzalloc(size, gfp); size = nbuckets; |